Sunspot 1513 unleashed second M-class solar flare – waves of ionization over Europe
Another M-class solar flare was released from Sunspot 1513 on Friday morning, the same sunspot that produced yesterdays M2.4 solar flare. The latest event measured moderate M2.2 and took place at 09:20 UTC Friday morning, June 29, 2012.Sunspots 1512 and 1513 have
